First of all, loved the begining. Very amusing. Nitpick: People from other houses shouldn't be in other houses common rooms. After all, wouldn't we have seen it if it was possible? We know there are people who date from other houses (like Percy and Penelope). They could meet in a "netural" place like the library.

Where to start? .. I loved it. Never realized what a nice couple Padma and Hermione would make.. I've always gone for Hermione/Luna stuff -;; or failing that, Ginny/Pansy. I do like the couples in here though.. very cute.